# Audio Frequency Analyzer vs Code Rain Clock

The clearest difference is price: Code Rain Clock at $0.99 against Audio Frequency Analyzer's $9.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Audio Frequency Analyzer costs $9.99 and Code Rain Clock $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Audio Frequency Analyzer ships an update every 8 months, Code Rain Clock every 6 months. Both last shipped on September 26, 2026.

## The numbers

| Metric | Audio Frequency Analyzer | Code Rain Clock |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 months** |
| Monetization | Paid | — |
| Size | 0 MB | 1 MB |
| Requires iOS | 26.2 | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [kohei yamane](https://appshunter.io/developer/1239055575) |

## What reviewers say

### Audio Frequency Analyzer

[App page](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742)

This real-time audio analyzer measures and evaluates sound environments with 1/3 octave band frequency response and FFT analysis. It supports calibration for high accuracy and is suitable for various audio testing and tuning applications.

**Highlights:** Real-time frequency spectrum response measurement (1/3 octave, 30 bands), FFT Analyzer, Observation frequency range: 20 - 23000 Hz, Calibration function for high accuracy, Supports built-in and external microphones, Snapshot and averaging functions

**In-app purchases:** none


### Code Rain Clock

[App page](https://appshunter.io/ios/app/code-rain-clock/id6758747018)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Audio Frequency Analyzer free?

Audio Frequency Analyzer costs $9.99, with no in-app purchases.

### Is Code Rain Clock free?

Code Rain Clock costs $0.99, with no in-app purchases.

### Do Audio Frequency Analyzer or Code Rain Clock have ads?

Neither Audio Frequency Analyzer nor Code Rain Clock shows ads.

### Which is updated more often, Audio Frequency Analyzer or Code Rain Clock?

Audio Frequency Analyzer ships an update every 8 months, and Code Rain Clock every 6 months. Most recently, Audio Frequency Analyzer was updated on September 26, 2026 and Code Rain Clock on September 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*